Method of filling liquid crystal display panel with liquid crystal and liquid crystal filling system performing the same

Inactive Publication Date: 2005-09-22
SAMSUNG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0029] As described above, according to the present invention, liquid crystal is filled between two substrates so that the number of the steps for sealing the liquid crystal can be reduced, and the processing time required for sealing the liq

Problems solved by technology

However, an excessive amount of liquid crystal may be supplied into the cell gap.
However, according to the second liquid crystal filling method, bubbles are generated inside the liquid crystal display panel or the liquid crystal overflows the liquid crystal display panel.
For example, when an excessive amount of liquid crystal is supplied into the color filter substrate, the excessive amount of liquid crystal overflows outside of the liquid crystal display panel.
On the contrary, when the liquid crystal is insufficiently supplied into

Method used

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  • Method of filling liquid crystal display panel with liquid crystal and liquid crystal filling system performing the same
  • Method of filling liquid crystal display panel with liquid crystal and liquid crystal filling system performing the same
  • Method of filling liquid crystal display panel with liquid crystal and liquid crystal filling system performing the same

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Experimental program
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embodiment 1

[0063]FIG. 4 is a flow chart showing a method of obtaining a second volume according to a first exemplary embodiment of the present invention.

[0064] Referring to FIG. 4, the second volume is obtained through two steps 22 and 24.

[0065] The number of the spacers disposed in the region enclosed by the seal line is obtained in step 22. The spacers may have a spherical shape and may be randomly scattered in the region disposed on the first substrate.

[0066]FIG. 5 is a flow chart showing a method of obtaining a number of spherical spacers according to a first exemplary embodiment of the present invention.

[0067] Referring to FIG. 5, the number of spacers can be obtained through steps 22A, 22B, 22C and 22D.

[0068] A second image of the spacers is obtained in step 22A. The spacers may have a spherical shape. The second image is temporarily stored in the storage unit.

[0069] In addition, in step 22B, the second image is transformed into image data by an image processing technique and are t...

embodiment 2

[0074]FIG. 6 is a flow chart showing the method of obtaining a second volume according to a second exemplary embodiment of the present invention.

[0075] Referring to FIG. 6, the second volume is obtained through three steps 25, 27 and 29.

[0076] A second area of the spacers in the region enclosed by the seal line is obtained in step 25.

[0077] A predetermined number of spacers having a column shape are disposed at predetermined positions in the region enclosed by the seal line. The column-shape spacer may be formed through a process of patterning photosensitive material.

[0078] According to the preferred exemplary embodiment of the present invention, the spacer may have a cylindrical shape.

[0079]FIG. 7 is a flow chart showing a method of obtaining a second area of column-shape spacers according to a second exemplary embodiment of the present invention.

[0080] Referring to FIG. 7, the second area of the column-shape spacers is obtained through three steps 25A, 25B, and 25C.

[0081] A...

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PUM

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Abstract

In a method of filling a liquid crystal display panel with liquid crystal and a liquid crystal filling system using the method, a seal line and spacers are formed on a color filter substrate. A first volume defined by the seal line and a second volumes defined by the spacers are obtained. An amount of liquid crystal to be supplied into a region enclosed by the seal line is precisely calculated based on the first and second volumes. Shortage of the liquid crystal supplied into the LCD panel and overflow of the liquid crystal can be avoided. Accordingly, the steps for supplying the liquid crystal into the LCD panel may be reduced, and simultaneously peripheral regions of the LCD panel be prevented from being contaminated by the liquid crystal while the liquid crystal is filled into the LCD panel.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS [0001] This application relies for priority upon Korean Patent Application No. 2002-33324 filed on Jun. 14, 2002, the contents of which are herein incorporated by reference in its entirety. BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] The present invention relates to a method of filling a liquid crystal display panel with liquid crystal and a liquid crystal filling system for performing the same. [0004] 2. Description of the Related Art [0005] Generally, liquid crystal is interposed between a TFT substrate and a color filter substrate of a liquid crystal display panel. [0006] The liquid crystal is affected by an electric field formed between the TFT substrate and the color filter substrate. In detail, the liquid crystal varies the transmissivity of the light supplied from an external light source depending on the electric field applied thereto, so that full-color images required by users can be displayed. [0007] The TFT ...

Claims

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Application Information

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IPC IPC(8): G02F1/13G02F1/1339G02F1/1341
CPCG02F2001/13415G02F1/1341G02F1/13415
Inventor NAM, HYO-HAKLEE, BONG-WOO
Owner SAMSUNG DISPLAY CO LTD
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